公开(公告)号：SG96187A1

公开(公告)日：2003-05-23

申请号：SG200003224

申请日：2000-06-09

Applicant: IBM

Inventor： KAMAL E DIMITRI ,  RODNEY JEROME MEANS ,  JOHN E KULAKOWSKI ,  DANIEL JAMES WINARSKI

IPC: H04N5/85 ,  G06F3/14 ,  G11B7/005 ,  G11B7/007 ,  G11B19/02 ,  G11B27/10 ,  G11B27/30 ,  H04N5/93 ,  G11B20/10

Abstract: A bit is provided in each Digital Video Disk memory sector header to indicate the type of information contained in the main data portion of the frame. A vector of video clips are stored on the DVD disk and the DVD drive examines the bit to determine whether to play a movie or to employ logic provided by the present invention that allows the DVD drive to determine which included video clip to play instead. The video clips may include cartoons, commercials, movie previews, etc. and the logic employed by the DVD drive allows for random or specific selections to be played at predetermined times, such as displaying a clip during the flipping process of a dual-sided DVD disk. Additionally, the method and apparatus may be applied to DVD disks to determine whether commercials are played before, after or during the movie or the movie is played commercial free.

公开(公告)号：MY110615A

公开(公告)日：1998-09-30

申请号：MYPI19911735

申请日：1991-09-25

Applicant: IBM

Inventor： RODNEY JEROME MEANS ,  GARY RAYMOND STEPHENS ,  JOHN EDWARD KULAKOWSKI

IPC: G11B7/00 ,  G11B7/0037 ,  G11B19/02 ,  G11B7/004 ,  G11B11/10 ,  G11B11/105 ,  G11B19/06

Abstract: IN AN OPTICAL DISK DRIVE, UPON EACH POWER OR ON DISK RECEIPT, A MODE CONTROL IS SET TO NON-OPERATE, I.E., NO COMMANDS CAN BE RECEIVED UNLESS A MODE SETTING COMMAND (100) HAS BEEN RECEIVED. ALL OTHER COMMANDS ARE REJECTED FOR PREVENTING ANY ACCESS TO AN OPTICAL DISK (30) PRESENT IN THE DRIVE UNTIL AFTER A MODE SETTING COMMAND HAS BEEN RECEIVED. WHEN A MODE SET COMMAND IS RECEIVED AFTER A POWER ON OR AFTER EACH DISK RECEIPT, THE MODE CONTROL IS SET TO OPERATE WHICH ALLOWS RECEIPT AND EXECUTION OF LEGAL COMMANDS. THE MODE SETTING REQUIREMENT FORCES SELECTION OF WRITE VERIFY OR NOT AND TO TURN LASER (67) OFF OR NOT AFTER A PREDETERMINED TIME DELAY AFTER COMPLETING A LAST COMMAND. (FIG. 5)